CALIBRATING METHODS AND APPARATUS TO PARTIAL STROKE TEST OF VALVES BY USING PRESSURE CONTROL - Patent 3140577

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(11)

EP 3 140 577 A2

(12)

(88)	Date of publication A3:
	04.02.2016

(43)	Date of publication:
	15.03.2017 Bulletin 2017/11

(21)	Application number: 15724439.3

(22)	Date of filing: 07.05.2015

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International Patent Classification (IPC):

F16K 37/00^(2006.01)
G05B 23/02^(2006.01)
G05B 15/02^(2006.01)

F15B 19/00^(2006.01)
G05D 7/06^(2006.01)

(86)	International application number:
	PCT/US2015/029582

(87)	International publication number:
	WO 2015/171843 (12.11.2015 Gazette 2015/45)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	MA

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Priority:

07.05.2014 US 201414272090

(71)	Applicant: Fisher Controls International LLC
	Marshalltown, IA 50158 (US)

(72)	Inventor:
	JUNK, Kenneth, W. Marshalltown, IA 50158 (US)

(74)	Representative: Foot, Paul Matthew James
	Withers & Rogers LLP 4 More London Riverside London Greater London SE1 2AU London Greater London SE1 2AU (GB)

(54)	CALIBRATING METHODS AND APPARATUS TO PARTIAL STROKE TEST OF VALVES BY USING PRESSURE CONTROL